The formula for conversion from temperature in degrees Fahrenheit (F) to temperature in degrees Celsius (C) is:
C = (5/9)*(F-A), where A is a constant. If C = 0 when F = 32, then what is the value of A?
Answers variants: A. 9/5 B. 32/9 C. 5 D. 32 E. 9
Correct answer: D. 32